bg-fixed-child-mask.html

Enable keyboard shortcuts

<!DOCTYPE HTML>

<html reftest-async-scroll

      reftest-displayport-x="0" reftest-displayport-y="0"

      reftest-displayport-w="800" reftest-displayport-h="2000"

      reftest-async-scroll-x="0" reftest-async-scroll-y="50"

      style="scrollbar-width:none">

<body style="height:3000px; margin:0;">

  <div style="margin-top: 100px; height: 100px;

              background-image:url(repeatable-diagonal-gradient.png);

              background-attachment:fixed;

              background-repeat:no-repeat;

              background-position:top left;

              border-radius:50px;">

  </div>

  <!-- test that the clip of a background-attachment:fixed background of a

       child element moves correctly during async scrolling -->

</body>

</html>